CN2918902Y - Flexibly connected magnetic liquid sealing device - Google Patents
Flexibly connected magnetic liquid sealing device Download PDFInfo
- Publication number
- CN2918902Y CN2918902Y CN 200620073612 CN200620073612U CN2918902Y CN 2918902 Y CN2918902 Y CN 2918902Y CN 200620073612 CN200620073612 CN 200620073612 CN 200620073612 U CN200620073612 U CN 200620073612U CN 2918902 Y CN2918902 Y CN 2918902Y
- Authority
- CN
- China
- Prior art keywords
- flange
- flexibly connects
- housing
- magnetic fluid
- seal device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model relates to a flexible connecting magnetic liquid sealing device, an annular permanent magnet (3) is positioned between two layers of annular soft iron body (2), constructing a sealing cylinder body in a house (4), the sealing cylinder body is suited on a turn shaft (7), the magnetic liquid is filled in the clearance between the inner wall of the sealing cylinder and the shaft, a flexible connecting flange is positioned on the outer wall of the house (4). The utility model has the advantages of no wear and tear, no leakage, long service life, good rotating and static sealing effect for the shafts, and no contact friction.
Description
Technical field
The utility model relates to a kind of magnetic fluid seal device.
Background technique
Rotation axis seal great majority such as existing blower fan, water pump, air pump, grinding machine adopt " J " shape circle contact seal, Stuffing box contact seal and the labyrinth seal of butterfly chip.Since be contact seal, the life-span of the effect of attrition seal arrangement of Sealing.And the labyrinth seal pressure-bearing is low, and axle can not effectively seal when static state.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of in order to overcome the above problems the axle class is had good rotation and static sealing effect, and contactless friction flexibly connect magnetic fluid seal device.
The technical solution of the utility model is achieved like this: a kind of magnetic fluid seal device that flexibly connects, 2 of two-layer ring-type soft iron bodies annular permanent-magnet body 3 is housed, in housing 4, constitute the sealed cylinder shape, sealed cylinder is sleeved on the running shaft 7, the tube inwall is filled with magnetic liquid 1 with the axle gap location, is characterized in: be equipped with on housing 4 outer walls and flexibly connect flange.
The utility model is the seal arrangement that is made of the magnetic liquid under the magnetic force constraint between static cylindrical shell and rotating shaft, weares and teares, does not have and reveal the characteristics of life-span length so have not have.Because the utility model has adopted and has flexibly connected flange, so it is poor to eliminate the sealing effect that the vibrations of the uneven thickness of magnetic liquid ring and Work machine is caused because of alignment error.
Description of drawings
Fig. 1 is the structural representation of the utility model tyre type adpting flange.
Fig. 2 is the structural representation of the utility model elastic material adpting flange.
Fig. 3 is the structural representation of the floating type adpting flange of the utility model.
Fig. 4 is the structural representation of the utility model bellow type adpting flange.
Fig. 5 is the structural representation of the utility model band " O " shape circle formula adpting flange.
1---magnetic liquid 2---ring-type soft iron body 3---permanent magnet 4---housing 5---tyre type elastomer 6---flange 7---running shaft 8---elastic material adpting flange 9---floating type adpting flange 10---baffle ring 11---bellows 12---" O " shape seal ring 13---band " O " shape circle formula adpting flange among the figure
Embodiment
The utility model is equipped with annular permanent-magnet body 32 of two-layer ring-type soft iron bodies, constitutes the sealed cylinder shape in housing 4, and sealed cylinder is sleeved on the running shaft 7, and the tube inwall is filled with magnetic liquid 1 with the axle gap location, is equipped with on housing 4 outer walls and flexibly connects flange.Isolated by the two ends of magnetic liquid with cylindrical shell under the magnetic force constraint, axle is under rotation and state of rest, and the sealed cylinder two ends can steady in a long-termly keep certain pressure difference, play the seal action of countershaft.
Flexibly connected various ways, listed 5 representational structural types in the accompanying drawing, Fig. 1 is the tyre type adpting flange, is to connect by a kind of tyre type elastomer 5 between housing male part and flange 6, reaches the purpose that flexibly connects.The tyre type elastomer can be made into half tire form with rubber, plastics, macromolecule linen-cotton textile etc., as the Flexible Connector between housing and the flange.
Fig. 2 is the elastic material adpting flange, and flange 8 is fixed on the housing, and end face and working machine are fitted, this flange adopts rubber, plastics elastomeric material to make, because be elastic material, when being subjected to external force, have elastic deformation characteristics, thereby play the purpose that flexibly connects.
Fig. 3 is floating type adpting flange, and this flange 9 is clamped on the convex edge face of baffle ring and housing by baffle ring 10, and flange can slide therein, plays flexibly connecting.
Fig. 4 is the bellow type adpting flange, because bellows has flexible telescopic nature, principle is identical with Fig. 1, adopts bellows 11 to connect bellows material available metal, rubber, plastics, macromolecule linen-cotton textile etc. between housing and the flange.
Fig. 5 is band " O " shape circle formula adpting flange, flange 13 adopts metallic material, leaves big gap between flange 13 and housing, places " O " shape seal ring that rubber material is made in the gap, utilize the micro-resiliently deformable of " O " shape seal ring, make it reach the purpose that flexibly connects.
Claims (6)
1, a kind of magnetic fluid seal device that flexibly connects, annular permanent-magnet body (3) is housed between two-layer ring-type soft iron body (2), in housing (4), constitute the sealed cylinder shape, sealed cylinder is sleeved on the running shaft (7), the tube inwall is filled with magnetic liquid (1) with the axle gap location, it is characterized in that: be equipped with on housing (4) outer wall and flexibly connect flange.
2, a kind of magnetic fluid seal device that flexibly connects according to claim 1 is characterized in that: be provided with a kind of half tire cast tyre type elastomer (5) between housing (4) male part and flange (6).
3, a kind of magnetic fluid seal device that flexibly connects according to claim 1 is characterized in that: the described flange that flexibly connects is elastic material adpting flange (8), and flange (8) is fixed on the housing, and end face and working machine are fitted.
4, a kind of magnetic fluid seal device that flexibly connects according to claim 1 is characterized in that: the described flange that flexibly connects is floating type adpting flange (9), and flange (9) is clamped in the convex edge face of baffle ring (10) and housing.
5, a kind of magnetic fluid seal device that flexibly connects according to claim 1 is characterized in that: be connected with bellows (11) between housing male part and flange (6).
6, a kind of magnetic fluid seal device that flexibly connects according to claim 1, it is characterized in that: the described flange that flexibly connects is band " O " shape circle formula adpting flange, between flange (13) and housing, leave big gap, in the gap, be placed with " O " shape seal ring that rubber material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620073612 CN2918902Y (en) | 2006-06-08 | 2006-06-08 | Flexibly connected magnetic liquid sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620073612 CN2918902Y (en) | 2006-06-08 | 2006-06-08 | Flexibly connected magnetic liquid sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2918902Y true CN2918902Y (en) | 2007-07-04 |
Family
ID=38216720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620073612 Expired - Fee Related CN2918902Y (en) | 2006-06-08 | 2006-06-08 | Flexibly connected magnetic liquid sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2918902Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110785588A (en) * | 2017-07-18 | 2020-02-11 | 伊格尔工业股份有限公司 | Shaft seal device |
| CN111396565A (en) * | 2019-12-11 | 2020-07-10 | 杭州大和热磁电子有限公司 | Magnetic fluid sealing device with guide mechanism |
-
2006
- 2006-06-08 CN CN 200620073612 patent/CN2918902Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110785588A (en) * | 2017-07-18 | 2020-02-11 | 伊格尔工业股份有限公司 | Shaft seal device |
| CN110785588B (en) * | 2017-07-18 | 2021-07-30 | 伊格尔工业股份有限公司 | Shaft seal device |
| US11506288B2 (en) | 2017-07-18 | 2022-11-22 | Eagle Industry Co., Ltd. | Shaft seal device |
| CN111396565A (en) * | 2019-12-11 | 2020-07-10 | 杭州大和热磁电子有限公司 | Magnetic fluid sealing device with guide mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070704 |